A Seoul court acquitted an American soldier of raping his South Korean fiancee in 2011, court officials said Tuesday.  

   The sergeant major of the U.S. Army, whose identity has been withheld, was indicted on charges of raping and assaulting his fiancee, whose identity remains anonymous, officials said.

   The Seoul Central District Court delivered a not-guilty verdict, citing lack of evidence, they added.

   "The court does not take credibility in the plaintiff's statement as well as other evidence," judge Kim Hwan-soo said in his ruling.

   Prosecutors said they will appeal against the ruling.

   About 28,500 American soldiers are stationed in South Korea as deterrence against North Korea. (Yonhap News)